Features A Simple FerroElectric Memory by Joe T. Evans, Jr Using some silicon magic, construct your very own two-bit non-volatile memory to perform experiments or utilize during operation of a microprocessor. Page 39 Designing Antenna Systems by John Belliveau KA1WRH Here are some thoughts on assembling a radio antenna system that is focused on simple and readily available components. Page 46 All About PIC Analog Comparators by Thomas Henry Even though analog comparators are not especially exotic, they certainly rate as one of the most useful building blocks in a wide variety of circuits. Page 50 Getting the Most from Tech Support by Chris Savage With technology being such an integral part of our lives these days, sooner or later you’re probably going to have to call for help with something. Here are some suggestions on how to get the most from your experience from one of the guys who answers those phones. Page 56 Projects The 8x8 RGB LED Matrix Display and the Arduino Arduino by Jerry Spring Challenge your imagination with the vast functionality available with this colorful display. Page 28 MIDI Buddy Arduino by Craig Lindley New to MIDI? Then, you need a Buddy to experiment with and learn about this musical protocol. Page 32 Columns Techknowledgey by Jeff Eckert Events, Advances, and News (02.2015) Read about a world’s record in data transmission, a real time translator, a new flavor of Pi, plus some other interesting stuff. Page 08 Q&A by Tim Brown Reader Questions Answered Here (02.2015) Questions about the size of satellite dishes and why there’s a lump in your power cable are answered. Page 12 The Spin Zone by Jon McPhalen Load and Go! Discover a way to selectively run multiple applications that wouldn’t normally fit into 32K of memory. Page 16 The Design Cycle by Fred Eady Numbats and Morays and Wi-Fi, Oh My! Numbats and Morays and Wi-Fi, Oh My! Biologically, eels and anteaters are on the opposite ends of the animal world scale. Convert them to silicon and the combination of snouts, hair, teeth, and scales makes for a pretty good W-Fi sensor node development platform. This month's column takes the brand new Moray Wi-Fi development board and its Numbat networking module for a monitor and control spin on the Internet. Page 60 Near Space by L. Paul Verhage CubeSats — Part 2: The Basic Subassemblies. Learn about some of the kits and basic subsystems that are now available for starting your own space program using CubeSats. Page 68 Practical 3D Printing by Chuck Hellebuyck A Custom 3D Printed Case for CHIPINO Here’s an example of how to use your 3D printer to design a custom enclosure. Page 72